Burn Twetter Speaker

It happen to my Tekton impact monitor tweeter because I got so excited listening to the music and increase the volume beyond the speakers can handle. Lesson learned I am care ful now..Cost $200 plus  labor and tweeter.

If you read the Stereophile review of the amp, there seems to be some slight mismatch in channel performance. It would be interesting to compare which side has the tweeter fails with the measures for that side in the review. As to the clipping, again this review tested clipping at about 50 watts into 8 ohm and 80 watts into 4 ohms. As speakers in use constantly present variable loads these numbers are "nominal" measures and not absolute. Use them only as comparatives to other like tested products. The OP states he plays at loud levels. His 6 ohm load approximates 65 watts, give or take, at clipping. Remember this is "nominal/static" impedance not music. Musical transients could easily cause this amp to clip at loud levels. I agree with most everyone else that it is time to look for an amp that is better matched to his use habits. An amp comparatively rated at 100 watts or more seems a good upgrade for now and for possible speaker upgrade in the future.

About 35 years ago I bought my first decent system. I was young, cranked the hell out of it. Turned it all the way up and just a tweak down when the amp red-lined. I went through tweeters in both cabinets. Paid to heave them replaced. Tech was nice enough to explain to me about Square Wave Damage.

On an oscilloscope, a sound wave should look like a wave. When you overdrive the amplifier, the sound wave shows up without curves, but with horizontal and vertical lines. Like a square.

I didn't hear any clipping or distortion when doing the damage but the damage does occur. I have since learned you don't drive a solid state amp at more than 50% of it's power. Now I have 2 amps and less hearing, LOL!

I'm no audio expert by far, but I have not had a problem with speakers since maintaining the 50% rule.

While its possible there may be a component problem in one of the speaker crossovers, it's my opinion that you need a lot more amplifier than you currently have and my guess is you would turn up your current amplifier even more if you could do it and hear clean sound. I am guessing that you probably NEED about 3 db or more headroom available in the amp if not more. 6 db wouldnt be too much to have if you want to ensure those tweeters survive. So in round numbers you have about 75 wpc available to you now with your current amp add 6 db more power and you are at 300 wpc. That would be a good place to start. If you know you are going to play loud having an amplifier that puts out twice the power of the speaker's power rating is not a bad place to start. This gets you close to that place where you are very certainly giving the speaker clean undistorted power. The distortion introduced by overdriving the amplifier creates overtones that almost certainly go up into the supersonic range above 20khz where the speakers are not designed to operate and those overtones are there in sufficient power to cause damage. Having too much clean power very rarely ever destroys a speaker under any kind of normal usage. Too little power kills tweeters with regularity...ask me how I know. Back in the day I had a 40 wpc dynaco amp SCA80Q that regularly blew tweeters in my larger Advent speakers. When I upgraded to a hafler DH-200 with a 115 wpc my tweeter problems ceased to exist. I think you will have similar results. Good luck and let us know how things turn out. :)

+1 likely underpowered amps overdriven to clipping, therefore need more power OR lower volume to non-clipping level.  Much less  likely - tweeters not engineered well enough for longevity.